US STOCKS-Wall St closes higher; Nasdaq up for 6th straight day
* Nasdaq scores best six-day streak since Dec. 2011
* Investors attribute weakness in data to poor weather
* Cisco falls after results, but tech sector rises
* Indexes up: Dow 0.4 pct, S&P 0.6 pct, Nasdaq 0.9 pct
By Ryan Vlastelica
NEW YORK, Feb 13 (Reuters) - U.S. stocks closed higher on Thursday, with the Nasdaq rising for a sixth straight day, as investors looked past disappointing data on consumer spending, chalking the weakness up to weather instead of weaker fundamentals.
The Nasdaq is up about 5.7 percent over the past six sessions, its best six-day advance since December 2011. Both the Dow and S&P 500 rose for the fifth session out of the last six.
Indexes opened lower but gained throughout the session, although Cisco Systems, which sank after warning about a slump in revenue, limited the Dow's advance.
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